i'm posting this in case it helps anyone :-)
Nathiel Siamendes has kindly brought to my attention that there is a simple workaround for those of us experiencing graphics performance degradation / jumpiness / a lack of smoothness when running Second Life on an NVIDIA-equipped MacBook with Mac OS X 10.6 Snow Leopard installed.
it is, namely, to disable OpenGL Vertex Buffer Objects, by following this path:
- Edit -> Preferences -> Graphics -> Hardware Options
the relevant JIRA entry is here :-)
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