When I close Xolox mid transfer I get one error box after another then I get one or two down by the sys tray and the thing closes.

Sometimes when I start Xolox it hangs for a long while or for as long as I am prepared to wait (permanently). Copying over the hostlist.txt file seems to solve this. Though i've dione this so many times that I keep a backup rady now. :-) I presume that these two are related.

I set the max upload to 1 and I get DLs of upto 80 when it is DLing in parts from different disks. Setting it to above 6 always takes off my DL speed even though I have 512k cable.