Weird "double" effect in Safari

Im running Leopard 10.5.2, have all the current updates, to date. And just recently i've been getting this weird bug in Safari with all pages.
When viewing a page, esp one with lots of text and verticle scrolling, all the text seems to jumble together and create a doubling effect, almost tripling in some cases. ill post a few screenshots of what I'm experiencing, but hopefully there's a fix for this, reading my daily blogs is becoming a big hassle.
thanks in adv
on a side note, this does not happen at all using the most current version of firefox...
http://img170.imageshack.us/img170/9492/picture2kh3.png
http://img147.imageshack.us/img147/4400/picture4th9.png
http://img170.imageshack.us/img170/7681/picture1fb9.png

Try this, it can't hurt.
1) Quit all open applications.
2) Delete your fonts caches with FontNuke or OnyX +(or with whatever utility you normally use)+
FontNuke <http://www.jamapi.com/pr/fn/>
OnyX <http://www.titanium.free.fr/pgs/english.html>
3) Restart your Mac
4) Open your Font Book->Edit menu 'Select All' fonts - from the File menu select 'Validate Fonts'
from the Edit menu select 'Resolve Duplicates'
Good luck,
Tom

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