[RESOLVED] Unexpected malfunction when changing from hours to minutes

[Zach_VB6]

Hey guys!

I have some code that runs on a timer, .Interval = 1000 ms.

Here's the code:

CanTest = CanTest OrElse (DateTime.Now.Subtract(LastTest).Hours >= 1)
If CanTest Then
	If InputBox(Question(Cur), "Question #" & cur.ToString("###,##0")) = Answer(Cur) Then
		Correct += 1
	End If
	Cur += 1
Else
	Dim wait As TimeSpan = LastTest.AddHours(1).Subtract(DateTime.Now)
	Me.Text = "Employee Tester - Waiting " & wait.ToString("mm") & ":" & wait.ToString("ss") 
End If

It works fine... It asks the question, waits an hour, counting down the time to next question in Me.Text - like it should.

However, when I change it to 65 minutes instead of 1 hour, it acts up. The time until next question starts going up instead of down... The only thing I changed is 1 hour to 65 minutes:

CanTest = CanTest OrElse (DateTime.Now.Subtract(LastTest).Minutes >= 65)
If CanTest Then
	If InputBox(Question(Cur), "Question #" & cur.ToString("###,##0")) = Answer(Cur) Then
		Correct += 1
	End If
	Cur += 1
Else
	Dim wait As TimeSpan = LastTest.AddMinutes(65).Subtract(DateTime.Now)
	Me.Text = "Employee Tester - Waiting " & wait.ToString("mm") & ":" & wait.ToString("ss") 
End If

Really confused... Please help!