Ado,
I have 1.4Ghz (i presume that's what you mea.. not MHz...!) 1st generation
Intel Centrino, 1gb, and 32 grahics and running Windows Vista Business -
Runs like a charme honestly. faster than XP. I was really happily surpised.
Obviosuly there is no aero, or flip 3d, and Movie Maker doesnt work, but
the rest seems to work totally fine.
I'm glad i upgraded. I'm sure your 1.3 will be fine too.
William