Petra Darkfire

Hi all, I have been for the last week been trying to create a stable connection to SL. I've done al the obvious things I can think of, for crashing, like clearing of cace, the restarts, refreshing internet connection, etc. I also notice that I can't do a character test on my avi, unless I use a different computer. Now after a week and a half or Hard Re-installing and asking friend to log into my account to do a developer dump then resetting my avatar, I am still crashing. I would appreciate any help. Thanks