Bug: Evaluate function with numbers is erratic

My Excel is 2003 SP 3 (Windows XP).
I've found a very crazy stuff!

I use Ctrl+G (Immediate Window)

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All lines above generate error

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All lines above are OK


Why? Is it a known Excel 2003 bug?

I've googled

"evaluate(2)" "excel" "vba" "function" "bug"

and I didn't found nothing similar!

Thanks for your answer.
It is good that the bug has been resolved in the latest versions
Maybe this error is specific to Excel 2003.
Note that my version is the last official version from Excel 2003 (Service Pack 3)

You don't will believe me, but shg is absolutely right and I'm right too.
I restart Excel and this weird problem disappears. For a while.
However, when I've opened my worksheet, the Evaluate problem has returned.
So I start to search where the problem arises.
Finally I've discovered that erasing one button that points to a supplement. XLA, the problem was over.
At last, I create other button calling the same procedure in XLA and everything is OK.
Amazing ...