When uploading any file with PHP greater than about 1 MB, dhtmlxvault seems to time out in the browser and not finish the upload (using either FireFox or IE6). I have tried increasing the size of the file limit on line 85 of dhtmlxvault.js but it did nothing.
I believe this is because the browser does not receive a response from the server. Any solution?
No, this is because the server has timed out the connection. Yuo shoud increase the allowed request time on the server and/or allowed upload file size.
How to do it - depends on the server type.