Some members can't upload
I installed 2-3 months ago vBGallery in my forum. I didn't have problems uploading images but not many people were uploading images. This weekend, one of the most active members told me he wasn't being able to upload. He gets a blank page after a while waiting.
I told him to pass me the image so I could try, but I can't neither, so it isn't a matter of usergroup permission. I changed the file size limits, just in case, but it doesn't upload. I try uploading bigger images and I can, but his images can't be uploaded.
What can the problem be? Solutions?