Trouble to read plist into UIPicker

[J-E]

Hi !

I'm trying to get a random line from a plist, and present it to a picker when pressing a "spin-button".
What am I missing ? When running the app, it crash with the following error;"
[NSCFString superview]: unrecognized selector sent to instance".

The code:
-------------
The .h -file
-------------

 #import <UIKit/UIKit.h>


	
@interface jhaGameViewController : UIViewController
<UIPickerViewDataSource, UIPickerViewDelegate> {

	
	UIPickerView *picker;
        NSArray *column1;
	UIButton *spin;
	NSMutableArray *ViewArray;
}
@property(nonatomic, retain) IBOutlet UIPickerView *picker;
@property(nonatomic, retain) NSArray *column1;
@property(nonatomic, retain) NSMutableArray *ViewArray;

- (IBAction)spin;
@end

--------------
The .m -file:
--------------

#import "jhaGameViewController.h"
@implementation jhaGameViewController
@synthesize picker;
@synthesize column1;
@synthesize ViewArray;

- (IBAction)spin {
	
    int lastVal = -1;
    for (int i = 0; i < 1; i++) {
        int newValue = random() % [self.column1 count];
		
        if (newValue == lastVal)
			
			lastVal = newValue;
	
	[picker selectRow:newValue inComponent:i animated:YES];
        [picker reloadComponent:i];
    }
}


 - (void)viewDidLoad {
	
	 for (int i = 1; i <= 5; i++) {
		 NSString *qpath = [[NSBundle mainBundle] pathForResource:@"jhaList" ofType:@"plist"];
		 ViewArray = [[NSMutableArray alloc] initWithContentsOfFile:qpath];
		 
		
		NSString *fieldName =
		[[NSString alloc] initWithFormat:@"column1", i];
		[self setValue:ViewArray forKey:fieldName];
		[fieldName release];
		[ViewArray release];
	
	 }
	
	srandom(time(NULL));
}

- (void)didReceiveMemoryWarning {
    // Releases the view if it doesn't have a superview.
    [super didReceiveMemoryWarning];
    
    // Release any cached data, images, etc. that aren't in use.
}

- (void)viewDidUnload {
    [super viewDidUnload];
    // Release any retained subviews of the main view.
    // e.g. self.myOutlet = nil;
	self.picker = nil;
        self.column1 = nil;
	self.ViewArray = nil;
}

- (void)dealloc {
    [picker release];
    [column1 release];
    [ViewArray release];
    [super dealloc];
}

#pragma mark -
#pragma mark Picker Data Source Methods
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView {
    return 1;
}

- (NSInteger)pickerView:(UIPickerView *)pickerView
numberOfRowsInComponent:(NSInteger)component {
    return [self.column1 count];
}

#pragma mark Picker Delegate Methods
- (UIView *)pickerView:(UIPickerView *)pickerView
			viewForRow:(NSInteger)row
          forComponent:(NSInteger)component reusingView:(UIView *)view {
    NSString *arrayName = [[NSString alloc] initWithFormat:@"column1",
						   component+1];
    NSArray *array = [self valueForKey:arrayName];
    [arrayName release];
    return [array objectAtIndex:row];
}

@end

I'm a newbie, so I'll apriciate all help I can get !

//J-E