"Invalid file." message when trying to upload pictures with filemanager1 user found helpful
flv, jpg, gif, jpeg, ico, docx, xla, png, psd, swf, doc, txt, xls, xlsx, csv, pdf, tiff, rtf, m4a, mov, wmv, mpeg, mpg, wav, 3gp, avi, m4v, mp4, mp3, qt, ppt, pptx, kml, xml
Is the issue browser specfic?
Is the issue client specific?
Do you see anything in the logs?
The Platform is a Windows platform, using IIS(Doesn't tell me which version), I have almost no information about the system, the webhost doesn't tell me much, I have no access to the logs
I'm just grasping at straws, trying to get a clue (the story of my life! LOL).