unexpected line breaks while using out-file

Hi all,

here is my code to export bunch of inventory to a text file.

$ADInfo = Get-ADDomain
$allDCs = $ADInfo.ReplicaDirectoryServers
foreach ($item in $allDCs)
{
$processor1 = (gwmi win32_processor -ComputerName $item).Name
$RAM = (gwmi win32_ComputerSystem -ComputerName $item).TotalPhysicalMemory
$memory = [math]::Round($RAM/1024/1024/1024, 0)
$TimeZone0 = (gwmi Win32_TimeZone -ComputerName $item).caption
$TimeZone1 = $TimeZone0 -replace ":", ""
$TimeZone = $TimeZone1 -replace " ", ""
$IPGateway0 = (gwmi win32_NetworkAdapterConfiguration -ComputerName $item | where {$_.IPEnabled -eq "True"}).DefaultIPGateway
foreach ($ipgw in $IPGateway0)
{
$IPGateway = $ipgw | Out-String				
}
$NICs = Get-ADComputer -Filter * -Properties ipv4Address | where {$_.DNSHostName -like "$item"} | foreach {$_.ipv4address}
foreach ($NICItem in $NICs)
{
$IPAddress2 = $NICItem | Out-String"$item : {0} : {1} GB : {2} : {3} : {4}" -f $processor1,$memory,$TimeZone,$IPAddress2,$IPGateway >> c:\scripts\hardware.log 
}

}

It exports data to hardware.log file. But for the last variable (IPGateway or anything i put) it breaks line and add something like that:

Any idea?