Latest update causes weird issues??

Hey All,

About 3 weeks ago I downloaded and installed the latest updates for XP
Pro SP2. Since then the following has occured. I'm curious if anyone
else has experienced these issues:

1) If I have an IE window open, and then clicking on a link opens up
another IE window, the new IE window will appear behind the most active
IE window. Additionally, clicking on the new IE window will not
activate it. I have to first click on some other window first, then I
can click on the new IE window to activate it.

2) I've noticed a bunch more lockup's and memory errors since
installing these updates.

3) Several web sites no longer show up in IE. They still show in
Netscape, but not in IE. And cleaning the temp files do not help......

Any thoughts???

Thanks in advance!