Hi, I Just purchased a game and as it is 1g wanted to use a download manager so it was quicker, Now for the 2nd time of trying it has stopped before 100% this time at 99% but if i click download again from my account it starts from scratch fine.

AFAIK, the only advantage to using the down-loader is the ability to "resume" in the event of a download fail. Can you press a "Resume" button instead of "Download" button? (been a long while since I tried the downloader)
I use my browser for everything and have had no problems even with the largest files (2GBs). When I tried the downloader, the download speed was the same as my browser DL speed. Using Firefox for downloading has worked without a single fail.
Edit: Downloader Issues Link

I think he's talking about a download manager, not the download manager.
Vroom23, the way GOG's downloads work means that the download link expires after a while. With ordinary download managers, this means that the download will stop and can't be resumed normally. I know some download managers give you the option of supplying a new URL for a running download, in which case you can do that. Otherwise, you have the option to download via the browser, or using GOG's own download manager, which handles the shifting URLs automatically.

Thanks, after rereading his post I believe you're right , my bad . . . =)