Mark, I used paint to do the converting and all the thumbnails I tried to access were edited in paint created from the snip tool.
As mentioned before, yes i can upload a png file but i have to type in the title due to png thumb nails not displaying.
It looks like this will remain a mystery but its no problem for me, I just thought I should bring this to Acoustica's attention knowing Acoustica like to be on top of any bugs or other issues, so in this case it looks like it fundamentally comes under "other issues" catagory, specifically a Microsoft windows one.
Tom, about the picture format - me too!
EDIT: I just consulted Mr google and found this...
My wife is a digital scrapbooker. On our new laptop, Explorer (Windows 7) doesn't display all the thumbnails for some graphics files - specifically PNG files. I verified the option to only show icons is not checked - and the really weird part is some of them do display...but most do not. Any suggestions for a fix?
This might be an issue with the icon cache on the computer; I would suggest that you rebuild the icon cache which might fix the issue.
Rebuilding the Icon Cache Database
1. Close all folder windows that are currently open.
2. Launch Task Manager using the CTRL+SHIFT+ESC key sequence, or by running taskmgr.exe.
3. In the Process tab, right-click on the Explorer.exe process and select End Process.
4. Click the End process button when asked for confirmation.
5. From the File menu of Task Manager, select New Task (Run…)
6. Type CMD.EXE, and click OK
7. In the Command Prompt window, type the commands one by one and press ENTER after each command:
CD /d %userprofile%\AppData\Local
DEL IconCache.db /a
8. In Task Manager, click File, select New Task (Run…)
9. Type EXPLORER.EXE, and click OK.
I won't be doing any of this because they display otherwise, so instead I'll just use jpeg.