combinatorics

I can't download this, the download starts then after a minute or so it stops making progress and a few minutes later I get an error message: C:\Documents and Settings\user\My Documents\Downloads\osbot 1.7.23(6).jar.part could not be saved, because the source file could not be read. Try again later, or contact the server administrator. Anything I can do to fix this?

I'm getting a problem with this bot and all other range guild bots I've tried, I'm thinking it's an error with OSbot maybe... If the bot spams the target before the pop up screen comes up then it's fine, the bot will fire the next arrow, but if the bot is too slow and the pop up screen comes up before he has a time to spam the target then he just keeps the cursor hovering above the close button without pressing it ever. The bot just gets stuck on the target view holding the mouse over the close button. This happens with other range guild bots on OSBot too, any solutions?