|hey, i know you said "i give up", but I'm just really curious, as i have not seen this problem before. since you've moved on, i won't be offended if you don't want to continue msg-thread.|
"I've tried to open folder via dos, but without success."
what method did you use to try to open the folder? what is the result if you do "dir /s *.jpg" from either the root (assuming c:\") or from the parent directory? (if you have masses of jpg files, apply "find" to filter assuming you know at least one probable filename f/e xx.jpg:
dir /s *.jpg | find /i "xx.jpg"
Also to consider is possibility that if it happened once, it could recurr (not to jinx you or anything!) I would just be curious to get the issue resolved. it seems like the folder's "directory" attribute bit (bit4 i think) has gotten switched off making it effectively a "file". Also, in "dos" (cmd window), if the folder shows up, and you type "attrib foldername" (from the parent dir), does it show a "d"?
sorry to ask so many questions...