Just had problems downloading a hadamcn task errors in event log as follows.
Wed 22 Feb 2012 09:43:04 GMT | climateprediction.net | Started download of waterfix.ancil.be.32.gz
Wed 22 Feb 2012 09:43:04 GMT | climateprediction.net | [error] File spec3a_lw_3_asol2c_hadcm3.gz has wrong size: expected 13431, got 13426
Wed 22 Feb 2012 09:43:04 GMT | climateprediction.net | [error] Checksum or signature error for spec3a_lw_3_asol2c_hadcm3.gz
Wed 22 Feb 2012 09:44:24 GMT | climateprediction.net | Finished download of ocean_u1m2_1980_40_007694002_0.gz
Wed 22 Feb 2012 09:44:24 GMT | climateprediction.net | Started download of SPARC_O3_rebuild_1900.gz
Wed 22 Feb 2012 09:44:24 GMT | climateprediction.net | [error] File ocean_u1m2_1980_40_007694002_0.gz has wrong size: expected 25253561, got 25257343
Wed 22 Feb 2012 09:44:24 GMT | climateprediction.net | [error] Checksum or signature error for ocean_u1m2_1980_40_007694002_0.gz
Wed 22 Feb 2012 09:44:25 GMT | climateprediction.net | Finished download of SPARC_O3_rebuild_1900.gz
Wed 22 Feb 2012 09:44:29 GMT | climateprediction.net | Finished download of sulpc_oxidants_19_A2_1990f.gz
Wed 22 Feb 2012 09:44:29 GMT | climateprediction.net | [error] File sulpc_oxidants_19_A2_1990f.gz has wrong size: expected 21089479, got 21097421
Wed 22 Feb 2012 09:44:29 GMT | climateprediction.net | [error] Checksum or signature error for sulpc_oxidants_19_A2_1990f.gz
I see uploader1.atm is down at the moment - any connection? Hadam3p_eu task downloaded fine moments before. No obvious problems with non BOINC related stuff down or up-loading from this end.

The offending task has now disappeared from my task list and I have downloaded a further 2 European tasks. For myself academic interest but don't know if it might alert the relevant it admin person/people to anything.