Powerpoint 'Save As' gives error 'Can't access...file name is invalid'

My users are having an odd problem with 'Save As' using Powerpoint 2000 on Windows XP and 2000.  When they try to save a copy of the file using 'Save As' they get the following error:
Powerpoint can't access g:\....\test.ppt becaouse the file name is invalid

I have tried various scenarios and came to the following conclusions:

*It doesn't seem to be a permissions issue on UPMS, it is universal across the agency drives, but you can still save to a local disk
*Only domain admins can 'Save As' without errors, even when I temporarily gave the users full control of their files
*It only seems to affect PowerPoint and only if you're doing a 'Save as' and have inserted a picture or other object.  Sticking to text slides has no issues.  I tried all the other Office programs and some third party programs without any trouble.
*It isn't the DFS, I tried it with the full server path with the same issues.
*They can still copy/delete/rename using a standard file browser without any issues

As a workaround I've discovered they can change the file type to 'Powerpoint 97-2000 & 95 Presenatation' and it saves without any errors (other than the warning that you may lose some features).

Any suggestions on how to resolve this issue completely?
dslntadminAsked:
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tajsimmonsCommented:
Is drive G a local drive harddrive or a network drive?

Cheers
TAJ Simmons
microsoft powerpoint mvp
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dslntadminAuthor Commented:
G is a DFS network drive, but I've also tried it with the full network path and had the same issue.
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dslntadminAuthor Commented:
It looks like bobrossi56 has the same or similar problem, though I could have sworn that question wasn't there when I posted.  At least it isn't just me anymore, certainly wondering if one of the recent Windows updates caused this.

http://www.experts-exchange.com/Software/Office_Productivity/Office_Suites/MS_Office/Powerpoint/Q_22824307.html
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GlennaShawCommented:
I wonder if the path length has anything to do with this?
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dslntadminAuthor Commented:
It doesn't seem to, I tried several files that were quite short paths (<50 characters).  
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GlennaShawCommented:
Maybe this might help.  Not quite the same, but similar.
http://support.microsoft.com/kb/294687/en-us?spid=2484&sid=global
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dslntadminAuthor Commented:
Thanks for the suggestion Glenna, but I've tried it with and without the DFS and we're up to date on service packs.  

I also just tried the same operation on a computer freshly ghosted that didn't yet have the most recent Windows and Office updates and still had the same problem.  So if it's a recent update causing the problem it's going to be a server update.  
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dslntadminAuthor Commented:
I disabled the realtime virus scan (Etrust ITM) on the server and it cleared the error.  I honestly don't know why I didn't try that before, amature mistake!  While disabling the scanner isn't a viable option, at least now I know who to bring the issue to.

Thanks for all the suggestions!  Please consider this issue closed.
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GlennaShawCommented:
thanks for letting us know
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MFredinCommented:
Hi dsIntadmin,

Did you contact CA about the issue?  Is there a fix?  I've got the same issue.

Thanks!
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dslntadminAuthor Commented:
Yes, I did contact CA.  The technician was very knowledgeable and directed me to turn off 'Protect Network Paths'.  This feature is redundant, as the servers themselves do have virus scanners on them also.  I turned the feature off on all policies and pushed them to the agency computers.

It's not the best solution in the world, but it did resolve the issue.
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MFredinCommented:
Great! Thanks!
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tajsimmonsCommented:
Do not abandon - there is a 'answer' within the replies. Very valuable for future EE searchers

TAJ
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Computer101Commented:
PAQed with points refunded (250)

Computer101
EE Admin
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