[newbie] question about mandrake probs..

[tech]

For months ive ran redhat 6 with no probs, but when i installed mandrake
7.2 it seems to take forever to boot up and once you get into kde it is
slow, this only happens after i reboot as the initial boot works fine..
also it doesnt seem to hold my configuration for my dsl.. any ideas as
to why it suddenly slows to a crawl after a simple reboot..