my Outlook 2007 gets stuck every time for a few seconds when downloading the last email

Try to remove checkbox of the Cache Mode.

where is that checkbox at?

Tools->Account->Account properties

Go to the Tools menu and choose Account Settings.
Click the More Settings button.
Click the Advanced tab.

Sorry, i missed one step:
Go to the Tools menu and choose Account Settings.
Verify that Microsoft Exchange Server is selected in the list and click the Change button.
Click the More Settings button.
Click the Advanced tab.

Svetaye...Zaldivar said, it is POP3 account, not Exchange.

And my 5 cents: a little hiccup might be caused by antivirus, temporarily holding downloaded mail until it is scanned for emails. Outlook keeps connection open and receives keep-alive signals until antivirus finishes scanning.
So, see if those two computers maybe have slower proccessors, or different antivirus. This might be causeing delays before mail actually comes into mailbox.

Ok, i'm really missed the "pop acounts".
Thanks Labsy.
Zaldivar-  maybe it helps:
http://uksbsguy.com/blogs/doverton/archive/2007/02/26/outlook-2007-pop3-performance-issues-and-potential-fixes-roundtrip-solutions-blog.aspx

svetaye, when you put al linnk to a possible solution you must see if the problem is solved there. That topic ends like this:

So you have reached the end and don't think you have a solution yet.  This is what I need you to do:

e-mail me

I will then ask for some more information and we can see whether together we can solve the issue.

"

I read all that they says and there is no solution to my problem

labsy I really though it was the antivirus, but I uninstalled it and it does not fix the problem. I am lookng for other programs messing un with the mail but I cant find no one.

I am out of ideas, except of debugging - if Outlook stucks for few seconds after download is finished, I'd observe network traffic (with DUmeter, for example) and proceses running (with procXP, for example) and try to catch-up the process, which causes delay.

Alternativelly, you might try manually connecting to POP3 with telnet, and observe the response of POP3 server. Here are some instructions you need for testing: http://www.artran.co.uk/computers/telnetPOP.html If POP3 server responses without delay at the end, the final hiccup is definitelly caused by Outlook.

Just few ideas, hope, it helps.

The computer brough with the business contact manager for 2007 installed. I uninstalled that and it is working fine right now

thx