Same Here on HP Vista (64).
First, I noticed this affect login on messenger
Net.Framework (all versions) removed and reinstalled, Restore to earliest point (upt to two months back), scanned for viruses w/differen programs, use a couple of free "Register fixes" programs, no info at all on HP website, no major help on Microsoft/Support...
I applied all at the above and noe works.
=(
Frustrated.
Thanks in advance (por sospecha.)
Uy3