I was also disappointed after just upgrading from SD 6 to SD 2007.

In less than 1 hour, it consumed more than 1.3gb memory which resulted in loss of work and crashes.

Its too sluggish even at start... is it written in .Net? (certainly looks like it)

I certainly hope for an update fixing the crashes and the excessive memory consumption.

If these problems were fixed, I would probably get used to the altered layout, and could probably live with the loss of some themes I dont use anyway.

best regards
Kim Madsen