Thanks Karabiner - that's reasssuring. I think perhaps I have misunderstood a problem that I have seen reported on the IBM site.
Other people who want to run repeated measures ANCOVA report that when run in SPSS the effect of the covariate is not partialled from the repeated measures...
I often use repeated measures designs with two factorial IVs, and a continuous DV, for example:
IV1: Face Emotion (2 levels - happy / angry)
IV2: Face Trust (2 levels - high / low)
DV: Mean Reaction Time (ms)
As well as being interested in the main effects and interaction between these...