Can you please try turning off:
VA Options -> Highlighting -> Highlight write and read references to symbol under cursor
VA Options -> Highlighting -> Highlight matching words when caret is in comments and strings
if this fixes this problem, can you try turning one on and one off, so we can see which of these is the trigger?
In your screen shot the symbol you are doing a find on is ending on the semi-colon, so if the keyboard caret is being placed at the end of the symbol then it will be placed next to the semi-colon. So to test this here I have tried the simple test code:
void testingHighlightSymbolAtEnd()
{
short pfnLoadTile;
pfnLoadTile = 1;
pfnLoadTile += pfnLoadTile;
pfnLoadTile *= pfnLoadTile;
pfnLoadTile += pfnLoadTile;
}
so far though no sign of the problem here.