OK - another Vista freezing problem. Does not seem to match anything else I've seen in Forums. Running Home Premuim on a QC HP box. It ran fine for a month or so - so I suspect a virus but all scans/diagnostic show up nothing.
Basically I can run programs when I log in but only for anout 1 min. Therafter I cannot lauch anything - desktop freezes. However the already launched programs work fine. I can surf away on Firefox, open new tabs, download etc. Likewise I can create/send & check mail fine if the mail client was lauched early on. If I minimise these programs though I lose them - the taskbar will not repond like rest of desktop.
CRTL-ALT_DEL works fine, task manager launches but freezes immediately. Logging off is a temp fix - if I cancel the alert about closing multiple Mozilla windows I get to cancel the logoff attempt and regain control - temporarily agiain though.
Seems to work OK if I have no LAN/WAN connection when I log in - have not tested extensively.
AVG scan shows nothing, went through registry repair and disabled all startup programs with cclean - made no difference.