Strange minus display

[ascxaxsvcbsxbbqvcxqsbcvxs]

I tried to test the {} match on XP Pro with svn build  rev 3669 (2007-02-10 13:44:04)   gcc 3.4.5 Windows/unicode

I write code with a single function. The code of this function is only composed of {}. I end up with the following display (see attached image)
Is it normal? Lines 5 to 13 and 16 are empty, zero character on these. Are the minus signs in these boxes normal? When clicking on one of this boxes, zero to three plus signs appears on other boxes.

I didn't try to compile it.

[attachment deleted by admin]

[ascxaxsvcbsxbbqvcxqsbcvxs]

Tested it with last nightly build, same display.

BTW: today i encountered several times the wxSmith bug, that makes CB crash when exiting.

[ascxaxsvcbsxbbqvcxqsbcvxs]

More tests: the text editor behaves incorrectly if the number of opened { is egal or greater than 23620
But it starts some strange behaviors before.