default programs --- explorer crashes! and a question about system restore too...

Windows Vista28
i am using windows vista ultimate and no updates have been installed.

whenever i try opeaning "Associate a file type or protocol with a program"

under default programs in control panel explorer crashes. i try to search

for online solutions but nothing seems to happen. what could be the problem?

in all other ways the system works fine.



also, reently i check the system restore window and i learnt my system has

only 3 restore points. the last time i used my system was on 14th jan and

that was the last system restore point created. i installed vista last

december so i was expecting some more restore points. i have not manually

deleted any and have also not disabled system point at any time. can anyone

comment on it?



thanks in advance.

Neerav


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