[Rd] "cannot allocate vector" error message (PR#6603)

[alog53 at aol.com]

Full_Name: Alex Loguinov
Version: 1.8.1
OS: Windows XP Prof
Submission from: (NULL) (24.7.84.58)


My R-code is working great but periodically I have error message for the same
working code, like this:

"Error: cannot allocate vector of size 24 Kb"

To fix it I need to exit R and reboot my PC (Dell 530 with dual CPU).
What is wrong R 1.8.1(I never had such error messages for the same R code in
1.7.1)?