Help Firefox 4 beta not installing

[Nasalhair]

Is anyone else having problems installing this? I had beta 4 installed but when I tried to update to beta 5 the download gets to 100%, then a few moments later I'm told that the download has failed. I've tried downloading it maybe 20 times now without success, have cleared my Market cache and data, rebooted my phone, and even uninstalled Firefox, yet it refuses to install.

For the record my free space is 2.89GB on the SD card, 36.47MB internal. Attempting the download via my own wireless network but have also tried it in work on our network there. Running a debranded Desire using software version 2.29.405.2.

 

[Nasalhair]

I'll take that as a "no" then.

For info I've also pulled the battery and left it out for a minute or so but it still won't install. Other apps are updating and installing perfectly.