Have just installed PS CS (upgrade from PS 6) and activated normally. However I have two problems and wondered whether anyone else has an answer. (btw Windows XP O/S) First on start up I get an error message saying that PDFL47.dll is missing_ re-install might solve (it doesn't) and then a second message saying 'couldn't load MMX Core Routine & Fast core modules because they don't work with this version.' If I cancel these info boxes, 'start-up' still procedes and PS seems to work ok._I've noticed this happens at about the time during start up when the programme is looking for my plugins folder (which still sits in my PS 6 directory)Is it because I still have PS6 installed??? Its no big deal but it does prolong the start up routine. Secondly, in my Windows browser all photoshop files created in the new programme have a flat black thumbnail. All ones made in my earlier version are ok. The PS browser seems to show the thumbnails properly is there something I'm not doing right on saving?