Controlling PowerShell's console output

Question

How do you control PowerShell's console output and overwrite the last character written?
I want to overwrite a character with a loop, like the spinning baton in UNIX while some Job.status -eq running. You know like cycle through |/-\| so it looks like a spinning bar.
I have the loop written but the console never seems to want to overwrite the last chacter. I am using write-host -nonewline, so at least I'm on the right line.
I have tried using `b and then the write-host, but it actually get this box character written to the screen instead of a backspace.
I have tried using [console]::cursor stuff but I can't set the cursor to less than zero and zero just leaves the cursor where it was anyway.
I also tried using [string]::format and {0,1} type stuff, but it always writes next to the last character. There's a guy who wrote a countdown timer, and when I run his code it doesn't work for me (http://poshtips.com/2010/03/29/powershell-countdown-timer/).
The timer just keeps writing to the side after 40 whitespaces.
The only way I have been able to do it is by calling cls before each character; of course i'd rather not clear the entire screen.
I'm hoping you will enlighten me...

Answer 1

function myWaitJob($job) {
$saveY = [console]::CursorTop
$saveX = [console]::CursorLeft
$str = '|','/','-','\'
do {
$str | ForEach-Object { Write-Host -Object $_ -NoNewline
Start-Sleep -Milliseconds 100
[console]::setcursorposition($saveX,$saveY)
} # end foreach-object
if ((Get-Job -Name $job).state -eq 'Running')
{$running = $true}
else {$running = $false}
} # end do
while ($running)
} # end function
Start-Job -ScriptBlock {Start-Sleep 10} -Name j1
myWaitJob j1
rjb j1
[string](0..9|%{[char][int](32+("39826578840055658268").substring(($_*2),2))})-replace "\s{1}\b"