http 400 bad request when trying to access certain websites

Yes, I know it's Win98 and that's probably the issue.  But all of a sudden, we cannot get to certain websites.  We can get to most sites.  We get  a http 400 bad request error.  I tried several different DNS addresses to no avail.  

Any suggestions aside from getting a new PC?
gregberryAsked:
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justinmoore14Connect With a Mentor Commented:
Hello gregberry, I assume that you are using Internet Explorer when you are getting these errors. Correct?? A couple of things...First have you tried to delete all of the temp internet files and cookies??? Second, have you considered installing Firefox to see if you get the same results??


http://www.mozilla.com/en-US/firefox/


Hope this helps
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JonveeCommented:
You could try a work around of the problem by switching off HTTP1.1  >>

From the menu select View > Internet Options > Advanced tab

Then scroll to the bottom and uncheck "Use HTTP1.1"
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JonveeConnect With a Mentor Commented:
This issue can also be caused by viruses &/or Malware, have you thoroughly scanned for these?
If in any doubt, please try these two >

Superantispyware:                        
http://www.superantispyware.com/

Also try the Kaspersky free online virus scanner which is a good way to find out if you have any viruses or spyware without having to uninstall your existing antivirus software>
http://www.kaspersky.co.uk/virusscanner
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JonveeCommented:
Please make sure you grant Internet access for Vcheck.exe via your firewall software. You could consult your firewall software user manual for details.

There's a reference here >
http://support.g7ps.com/errorfaq.asp

Scroll to sub-heading "Application Server Error /400 Bad Request".
Notice the suggestion to ensure you grant Internet access for Vcheck.exe via your firewall software.

If still unresolved, try Trend HijackThis 2.02.
http://majorgeeks.com/Trend_Micro_HijackThis_d5554.html

Create a folder where you would like the HijackThis file to reside and run it from there, not from the Desktop or a temporary folder.
Run the scan & save the logfile.  Then click the "Attach Code Snippet" box, paste the logfile into the "Code Snippet" page & there we can analyse it.  We are looking for rootkits or other nasties.
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JonveeCommented:
Sorry, these two lines did not get copied at the start of my last comment>

>> Apparantly another reason for the error is a firewall issue or client Internet connection issue.  Are you perhaps using a McAfee or Norton firewall ?   <<

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