I have been havin this problem since yesterday with my blog. I was trying to set up permalinks and had to edit my htaccess file to do so, but when I tried, I was suddenly gettin 403 forbidden error on my blog site. I checked the error log and it said that it could access the .htaccess file so i changed the file permissions. I no longer get an 403 error but just a blank page on my site. I think I may have changed more file permissions whilst messing around trying to get permalinks working.
Does anybody have any suggestions?? Would it be possible to simply copy all the files from a new wordpress installation and keep my current database??
Any advise would be grateful (and I know I did a silly thing messing with htaccess and other files but permalinks are just hard to get working! )
Thanks very much :)