O/S is Windows XP (Home), PC recent COMPAQ (2004), ISP Verizon (Broadband), have an AOL account, plus MSN, I/E (6.0?). Cannot sign in to any Internet account in general, although sometimes. (Behavior is different at every reboot.) COMPAQ PC Help & Support error log notes COM+ Event error. Tried to fix from Internet instructions involving removal of clbcatq.dll and COM+ reinstall. Did not work. Now Help & Support gives Class Not Registered error, can no longer view error log, system status, etc. System Restore to recent dates does not work (but worked for May--no help). ISP verified Internet connection. PC diagnostics indicate modem is functioning correctly, says problem is in "Key Ports." Firewall (Windows SP3) does not appear to be the problem. Checked with AOL help--useless. Tried 5 different registry cleaners/fix it tools--nothing works.
Nothing works, and so far I haven't been able to get a straight answer out of anybody.