After reinstalling, windows is acting a bit funny... sub menus don't open automatically. For example if I click start and point to Programs, I have to click for the menu to appear. This happens also with context (right-click) menus.

Another Win anomaly occurs when I click the minus sign in a folder tree. The tree collapses but re expands again to the sub-directory I was in. Eg: If I'm in C:\Data\Docs and click the minus sign on 'C:'
the tree collapses and immediatly re-expands to 'Docs'!! I have to first select C: and then click the minus sign.