For some reason, the 1.5b5 did not work in the sense that no uploading or downloading occurred.

I downloaded the nightly version 7870 and tah-tah, the same torrents that were 'non functioning' with 1.5b5 started immediately to upload/download.

Another observation: uploading seems to be capped at 15 peers no matter how many torrents are running (even 1). I have plenty of unused bandwidth. This has been the case since I started using Transmission from the early 1.42 version. Did not use version 1.41. Would like to have more uploads.

I use 10.5.6 on an iMac Intel duo, 2.4Ghz