Solidworks Performance

my SW install seems to be having issues. For no apparent reason, working on the SAME assemblies as before the problem, seems to have slowed way down. Working in it is ok. Sketch creation, feature editing, etc., don't seem to be affected- but when I hit to switch between open documents it takes F-O-R E-V-E-R... I counted- 15 seconds, which is forever if your a going back and forth between files to do 5 seconds of work on them. I didn't use to be like this. Just not long ago, it was switching open documents almost instantly.

Also, when I hit the open document pull down, and click on recent documents, it take a long time for te dialog box to pop up.

I dont *think* it's my computer. Everything else runs normal. Pro E runs fine. Maybe the PTC guys installed a worm to cripple my SW...

Thanks,
BM
SolidworksGeneral